Let’s get to the fun part – making this delightful dish! Follow these steps, and I promise you’ll impress everyone at your next gathering.

Start by washing and dicing all your fresh ingredients. Make sure to be careful with the jalapeño; its heat can be intense, so work with it gently.

The colors should look like a vibrant palette by the time you’re done! Lay everything out in a big mixing bowl.

Now it’s time for the stars of the show. Add the black beans, pinto beans, and white kernel corn to your bowl.

These ingredients are not only hearty but give a wonderful texture that contrasts perfectly with the crunchy bell peppers. Mix them in gently.

Add the diced green chilies and sprinkle the ground cumin into the mix. The cumin will give that smoky depth that makes this dish so addictively tasty. At this point, don't be afraid to use your hands for mixing; it’s part of the fun!

In a separate bowl, combine the rice vinegar, granulated sugar, garlic powder, and olive oil. Whisk the ingredients together until they’re well-combined. Taste it; ideally, it should have a balanced flavor of sweet and tangy. Adjust to your liking!

Pour the dressing over the bean and vegetable mixture. Stir everything together gently until all the ingredients are coated with the dressing. The colors will pop, and the aroma will make your mouth water.

Now, cover the bowl with plastic wrap or a lid and let it chill in the refrigerator for at least 30 minutes. This allows the flavors to melt together beautifully. When it's time to serve, give it another quick stir, and it’s ready to shine on the buffet table!